Metier delivers advanced hydrogen vehicle components that ensure safe, reliable and efficient fuel delivery.
Our core products are the On‑Tank Valve (OTV) and the High‑Pressure Regulator (HPR). Both are critical components in hydrogen storage and fuel‑delivery systems.
Our components support both hydrogen fuel‑cell vehicles and hydrogen internal combustion engines (H2ICE).
Each product is engineered for high safety, consistent performance and long‑term durability, giving OEMs dependable solutions for modern hydrogen platforms.
Metier’s portfolio is built on patented technology and supported by robust safety features and recognised certification routes. Together, these deliver cost‑effective hydrogen solutions that improve system efficiency and reduce total vehicle cost.
Metier provides the high‑quality components needed to power the next generation of hydrogen mobility.
On-Tank Valve (OTV)
The On‑Tank Valve (OTV) is a safety‑critical component used in all gaseous hydrogen vehicles.
Each hydrogen storage cylinder — typically operating at 350 bar or 700 bar — requires an OTV to ensure safe containment and controlled release of hydrogen. Vehicles often carry multiple composite tanks, typically two to six per vehicle.
The OTV maintains system integrity across both hydrogen fuel‑cell and H2ICE applications.
Metier’s OTV integrates all required safety functions into a single unit, including:
- a solenoid valve
- manual isolation and bleed valves
- a filling check valve
- pressure and temperature sensors
- a Thermal Pressure Relief Device (TPRD) that vents gas safely under extreme conditions
Fully aligned with UN R134 approval requirements, the design improves safety, durability and serviceability across the hydrogen storage system. This gives OEMs and system integrators a reliable, cost‑efficient solution.
High Pressure Regulator (HPR)
The High‑Pressure Regulator (HPR) controls hydrogen delivery to the engine or fuel cell at a stable, consistent pressure.
After refuelling, tank pressures reach 350 bar or 700 bar and reduce as hydrogen is consumed. The HPR maintains a constant outlet pressure — for example 15 bar — allowing the power system to operate consistently regardless of tank pressure.
Positioned between the storage system and the engine, the HPR is essential for both hydrogen fuel‑cell and H2ICE platforms.
Metier’s HPR is a two‑stage mechanical regulator that delivers precise pressure control without requiring an electronic control system.
Its balanced spring‑and‑piston design ensures accurate regulation across the full operating range, while integrated Pressure Relief Valves (PRVs) maintain safe pressure limits.
As the HPR does not fall under UN R134, the most applicable certification route is ANSI HGV 3.1, supporting safe integration into global hydrogen vehicle systems.
Through robustness, accuracy and simplicity, Metier’s HPR delivers a high‑quality, durable and cost‑effective hydrogen regulation solution
